Redox properties of a mononuclear copper(II) superoxide complex, (L)Cu II-OO•, supported by a tridentate ligand (L = 1-(2-phenethyl)-5-[2-(2-pyridyl)ethyl]-1,5-diazacyclooctane) have been examined as a model compound of the putative reactive inter...
The carbomethoxy substituted dithiolene ligand (L-COOMe) enabled us to develop a series of new bis(ene-1,2- dithiolato) tungsten complexes including (WO)-O-VI, W-IV(OSiBuPh2), (WO2)-O-VI, (WO)-O-VI(OSiBuPh2) and (WO)-O-VI(S) core structures. By us...
CHEMICAL COMMUNICATIONS 49(39) 4358-4360 2013年 [査読有り]
Oxo-sulfido- and oxo-selenido-molybdenum(VI) complexes with an ene-1,2-dithiolate ligand are generated as models of the active sites of molybdenum hydroxylases. The sulfide and selenide groups are highly reactive toward triphenylphosphine in the o...
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY 29(29) 4574-4578 2012年10月 [査読有り]
Reaction of a copper(I) complex supported by a sterically demanding tripodal tetradentate ligand, HIPT3tren, and O2 gave a mononuclear copper(II) end-on superoxo complex. Spectroscopic (UV/Vis, resonance Raman, ESR, and 1H-NMR) and DFT studies hav...
Atsutoshi Yokoyama   Jung Eun Han   Jaeheung Cho   Minoru Kubo   Takashi Ogura   Maxime A. Siegler   Kenneth D. Karlin   Wonwoo Nam   
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 134(37) 15269-15272 2012年9月 [査読有り]
The O-2 and NO reactivity of a Cr(II) complex bearing a 12-membered tetraazamacrocyclic N-tetramethylated cyclam (TMC) ligand, [Cr-II(12-TMC)-(Cl)](+) (1), and the NO reactivity of its peroxo derivative, [Cr-IV(12-TMC)(O-2)(Cl)](+) (2), are descri...
Structural information on protein dynamics is a critical factor in fully understanding the protein functions. Pump-probe time-resolved serial femtosecond crystallography (TR-SFX) is a recently established technique for visualizing the structural c...